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Recolonization of Europe after the last ice age started earlier than previously thought


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IMAGE: Virtual model of the hemimandible Tagliente2. In the latter, the presenceo of cementoma is visible (in red).
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Credit: G. Oxilia
A study that appeared today on
Current Biology sheds new light on the continental migrations which shaped the genetic background of all present Europeans. The research generates new ancient DNA evidence and direct dating from a fragmentary fossil mandible belonging to an individual who lived ~17,000 years ago in northeastern Italy (Riparo Tagliente, Verona). The results backdate by about 3,000 years the diffusion in Southern Europe of a genetic component linked to Eastern Europe/Western Asia previously believed to have spread westwards during later major warming shifts. ....

South Australia , Stefano Benazzi , Federica Fontana , Sahra Talamo , Gregorio Oxilia , Riparo Tagliente , University Of Tu , Luca Pagani University Of Padova , Institute Of Genetics , University Of Ferrara , University Of Venice Ca Foscari , University Of Florence , Monash University Melbourne , University Of Bologna , Eugenio Bortolini University Of Bologna , University Of Padova , Spanish National Research Council , Current Biology , Southern Europe , Western Asia , Last Glacial , Southern European Hunter Gatherers , Eugenio Bortolini , Last Glacial Maximum , Luca Pagani , National Research Council ,

OIDA Sponsored Webinar: Frequency Comb Based Laser Systems for Optical Clock and Quantum Technology Applications


2 February 2021, 11:00 - 12:00
EasternTime
Menlo Systems’ ultra-low noise (ULN) frequency comb technology, combined with advanced CW laser sources, ensures transferring the spectral purity of a superior optical reference to all CW lasers locked to the comb. This feature is exploited in clock comparisons or quantum experiments, where a long coherence time of the laser sources is mandatory.
As pioneer and the market leader of optical frequency comb technology, in the second part of this webinar miniseries Menlo Systems presents the FC1500-Quantum, a complete laser system for applications in optical (lattice) clocks and quantum technology. Applications examples from these research areas elucidate the demand in highest stability and accuracy of the involved laser sources. A live demo of the FC1500-ULN scientific platform optical frequency comb highlights the superior performance of the system and the benefit of saving time for the actual experiment. ....

United States , United Kingdom , Baden Wuberg , Benjamin Sprenger , Michele Giunta , University Of California , Max Planck Institute Of Quantum Optics , Quantum Technology Metrology Expert , Humboldt University , University Of Tu , Photonic Microwave Generators Quantum Technology Comb Systems , Imperial College London United Kingdom , Menlo Systems , Dag Schmidt , Product Manager , Frequency Combs , Regional Manager , Quantum Technology , Metrology Expert , Imperial College London , Quantum Optics , Sales Engineer , Optical Reference , Microwave Generators , Quantum Technology Comb Systems , Physics Engineering ,